//package com.jk.libsm.config;
//
//import com.alibaba.fastjson.JSON;
//import com.alibaba.fastjson.serializer.SerializerFeature;
//import com.alibaba.fastjson.support.config.FastJsonConfig;
//import com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter;
//import org.omg.PortableServer.SERVANT_RETENTION_POLICY_ID;
//import org.slf4j.Logger;
//import org.slf4j.LoggerFactory;
//import org.springframework.context.annotation.Bean;
//import org.springframework.context.annotation.Configuration;
//import org.springframework.http.MediaType;
//import org.springframework.http.converter.HttpMessageConverter;
//import org.springframework.stereotype.Controller;
//import org.springframework.web.servlet.config.annotation.EnableWebMvc;
//import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
//
//import java.nio.charset.Charset;
//import java.util.ArrayList;
//import java.util.List;
//
////@Configuration
////public class MyFastJsonConfig {
////
////    @Bean
////    FastJsonHttpMessageConverter fastJsonHttpMessageConverter() {
////        FastJsonHttpMessageConverter converter = new FastJsonHttpMessageConverter();
////        FastJsonConfig config = new FastJsonConfig();
////        config.setDateFormat("yyyy-MM-dd");
////        config.setCharset(Charset.forName("UTF-8"));
////        config.setSerializerFeatures (
////                SerializerFeature.WriteClassName,
////                SerializerFeature.WriteMapNullValue,
////                SerializerFeature.PrettyFormat,
////                SerializerFeature.WriteNullListAsEmpty,
////                SerializerFeature.WriteNullStringAsEmpty
////        );
////
////        converter.setFastJsonConfig(config);
////
////        return converter;
////    }
////
////}
//
//@Configuration
//@EnableWebMvc
//public class MyFastJsonConfig implements WebMvcConfigurer {
//    private final Logger logger = LoggerFactory.getLogger(WebMvcConfigurer.class);
//
//    //使用阿里 FastJson 作为JsSON MessageConverter
//    @Override
//    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
//        //调用父类的配置
//        WebMvcConfigurer.super.configureMessageConverters(converters);
//        //创建fastJson消息转换器
//        FastJsonHttpMessageConverter fastConverter = new FastJsonHttpMessageConverter();
//
//        //升级最新版本需加=============================================================
//        List<MediaType> supportedMediaTypes = new ArrayList<>();
//        supportedMediaTypes.add(MediaType.APPLICATION_JSON);
//        supportedMediaTypes.add(MediaType.APPLICATION_JSON_UTF8);
//        supportedMediaTypes.add(MediaType.APPLICATION_ATOM_XML);
//        supportedMediaTypes.add(MediaType.APPLICATION_FORM_URLENCODED);
//        supportedMediaTypes.add(MediaType.APPLICATION_OCTET_STREAM);
//        supportedMediaTypes.add(MediaType.APPLICATION_PDF);
//        supportedMediaTypes.add(MediaType.APPLICATION_RSS_XML);
//        supportedMediaTypes.add(MediaType.APPLICATION_XHTML_XML);
//        supportedMediaTypes.add(MediaType.APPLICATION_XML);
//        supportedMediaTypes.add(MediaType.IMAGE_GIF);
//        supportedMediaTypes.add(MediaType.IMAGE_JPEG);
//        supportedMediaTypes.add(MediaType.IMAGE_PNG);
//        supportedMediaTypes.add(MediaType.TEXT_EVENT_STREAM);
//        supportedMediaTypes.add(MediaType.TEXT_HTML);
//        supportedMediaTypes.add(MediaType.TEXT_MARKDOWN);
//        supportedMediaTypes.add(MediaType.TEXT_PLAIN);
//        supportedMediaTypes.add(MediaType.TEXT_XML);
//        fastConverter.setSupportedMediaTypes(supportedMediaTypes);
//
//        //创建配置类
//        FastJsonConfig fastJsonConfig = new FastJsonConfig();
//        //修改配置返回内容的过滤
//        //WriteNullListAsEmpty  ：List字段如果为null,输出为[],而非null
//        //WriteNullStringAsEmpty ： 字符类型字段如果为null,输出为"",而非null
//        //DisableCircularReferenceDetect ：消除对同一对象循环引用的问题，默认为false（如果不配置有可能会进入死循环）
//        //WriteNullBooleanAsFalse：Boolean字段如果为null,输出为false,而非null
//        //WriteMapNullValue：是否输出值为null的字段,默认为false
//        fastJsonConfig.setSerializerFeatures(
//                SerializerFeature.WriteClassName,
//                SerializerFeature.WriteMapNullValue,
//                SerializerFeature.PrettyFormat,
//                SerializerFeature.WriteNullListAsEmpty,
//                SerializerFeature.WriteNullStringAsEmpty
//        );
//        fastConverter.setFastJsonConfig(fastJsonConfig);
//        //将fastjson添加到视图消息转换器列表内
//        converters.add(fastConverter);
//    }
//
//}
//
////@Configuration
////public class MyFastJsonConfig implements WebMvcConfigurer {
////    @Override
////    public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
////        FastJsonHttpMessageConverter converter = new FastJsonHttpMessageConverter();
////        FastJsonConfig config = new FastJsonConfig();
////        config.setDateFormat("yyyy-MM-dd");
////        config.setCharset(Charset.forName("UTF-8"));
////        config.setSerializerFeatures(
////                SerializerFeature.WriteClassName,
////                SerializerFeature.WriteMapNullValue,
////                SerializerFeature.PrettyFormat,
////                SerializerFeature.WriteNullListAsEmpty,
////                SerializerFeature.WriteNullStringAsEmpty
////        );
////        converter.setFastJsonConfig(config);
////        converters.add(converter);
////    }
////}